Riveting head for motor support assembly

Abstract

According to the riveting head for the motor support assembly, the shape of a stamping point of the riveting head is optimized, the stamping point is arranged to be a stamping part of a rectangular structure and a blocking part, the blocking part is bent and extends downwards, and the stamping part and the blocking part are matched with each other during stamping; the stamping part stamps the preset position of the upper end face of the side wall of the motor support to tear materials at the position, and the blocking part wraps the outer side face of the side wall of the motor support at the same time, so that the torn materials are extruded towards the inner side face of the side wall of the motor support to form riveting points. As the stamping part is of the rectangular structure, the material at the preset position of the upper end face of the side wall of the motor support can be directly torn longitudinally, and compared with the mode that only the upper end face of the side wall of the motor support can be extruded and deformed, the material amount for forming riveting points can be increased; in addition, the blocking part wraps the outer side face of the side wall of the motor support, so that all torn materials can only extrude towards the inner side face of the side wall of the motor support to form a riveting point with a large size to the maximum extent, and the elastic piece is stably fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor assembly, and in particular relates to a riveting head for a motor bracket assembly. Background Art

[0002] The motor bracket assembly includes a motor bracket and a spring piece installed inside the motor bracket. Specifically, the inside of the motor bracket is in a step shape. During assembly, the spring piece is first placed on the step surface of the motor bracket, and then the upper end surface of the outer wall of the motor bracket is punched by a riveting head to form a plurality of rivet points. The spring piece is confined to the motor bracket through the rivet points. However, the punching points of the traditional riveting head are in an arc shape. When punching the upper end surface of the side wall of the motor bracket, the middle of the punching place is concave and the concave material will be squeezed to both ends to form rivet points. Since the deformation of the material at the punching place is limited and the material is also squeezed to both ends at the same time, the rivet point formed at one end of the inner side surface of the outer wall of the motor bracket is small (such as Figure 5 As shown in the figure, the spring piece cannot be stably riveted together. If a large collision occurs during transportation or the next step of assembly, the riveting point is easy to loosen or the motor bracket and the spring piece are easy to separate, affecting the stability of the assembly. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] In order to overcome the above shortcomings, the purpose of the utility model is to provide a motor bracket assembly riveting head to solve the technical problem that the rivet points formed by the existing riveting head after punching are small and the spring pieces cannot be riveted stably.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0007] A motor support assembly riveting head, comprising: a riveting head body and a plurality of punching points arranged at intervals in the circumferential direction at the end of the riveting head body, wherein each punching point comprises a punching portion with a transversely extending rectangular structure for punching a predetermined position on the upper end surface of the motor support side wall to tear the material at the position, and a blocking portion arranged at one end of the punching portion and bent and extending downward, capable of wrapping the outer side surface of the motor support side wall to squeeze the torn material toward the inner side surface to form a riveting point;

[0008] The present application optimizes the shape of the punching point of the riveting head and sets the shape of the punching point to a punching portion and a blocking portion. The punching portion has a rectangular structure, and the blocking portion is bent and extends downward. When punching, the punching portion and the blocking portion cooperate with each other. The punching portion punches a predetermined position on the upper end surface of the motor bracket side wall to tear the material at the position, and the blocking portion simultaneously wraps the outer side surface of the motor bracket side wall to squeeze the torn material toward the inner side surface of the motor bracket side wall to form a rivet point. Since the punching portion has a rectangular structure, the material at the predetermined position on the upper end surface of the motor bracket side wall can be directly torn longitudinally. Compared with the method of only extruding and deforming the upper end surface of the motor bracket side wall, the amount of material forming the rivet point can be increased. In addition, the blocking portion wraps the outer side surface of the motor bracket side wall so that all the torn materials can only be squeezed toward the inner side surface of the motor bracket side wall to form a larger rivet point to the maximum extent. The larger rivet point can stably fix the spring piece.

[0009] In some embodiments, a connection between the stamping portion and the blocking portion forms an arc-shaped transition surface;

[0010] By setting the connection between the stamping part and the blocking part as an arc-shaped transition surface, the punched rivet point has an arc-shaped structure at one end close to the outer side surface of the motor bracket side wall. In addition to enhancing the structural strength between the rivet point and the upper end surface of the motor bracket side wall, it can also avoid the problem of the rivet point forming an edge that can easily cut hands if accidentally touched.

[0011] In some embodiments, the number of punching points is eight;

[0012] By setting eight punching points, multiple rivet points can be punched out evenly around the side wall of the motor bracket, thereby increasing the number of punched rivet points and stably riveting the spring pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the riveting head of the motor bracket assembly of the utility model;

[0014] Figure 2 yes Figure 1 A partial enlarged view of part I;

[0015] Figure 3 This is a state diagram of the motor bracket of the utility model when it is not stamped;

[0016] Figure 4 This is a state diagram of the motor bracket of the utility model after stamping;

[0017] Figure 5 It is a structural schematic diagram of a riveting head of an existing motor bracket assembly.

[0018] Reference numerals:

[0019] 1. Riveting head body; 101. Punching point; 1011. Punching part; 1012. Blocking part; 1013. Arc transition surface; 2. Motor bracket; 201. Outer side surface; 202. Inner side surface; 203. Step surface; 204. Riveting point; 205. Upper end surface. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] See also Figure 1-Figure 4 The utility model provides a riveting head for a motor bracket assembly, comprising: a riveting head body 1 and a plurality of stamping points 101 circumferentially spaced at the end of the riveting head body 1, wherein each stamping point 101 comprises a stamping portion 1011 of a laterally extending rectangular structure for stamping a predetermined position of an upper end surface 205 of a side wall of a motor bracket 2 to tear the material at the position, and a blocking portion 1012 arranged at one end of the stamping portion 1011 and bent and extending downward, which can wrap the outer side surface 201 of the side wall of the motor bracket 2, so that the torn material is squeezed toward the inner side surface 202 to form a riveting point 204.

[0022] Specifically, the interior of the motor bracket 2 has a stepped structure, and the spring piece needs to be assembled inside the motor bracket 2 and placed on the step surface 203, and then the upper end surface 205 of the outer wall of the motor bracket 2 is punched at predetermined positions by a riveting head to form multiple rivet points 204, thereby confining the spring piece to the interior of the motor bracket 2, thereby realizing the assembly of the spring piece.

[0023] See also Figure 4 Specifically, during stamping, the riveting head moves downward, the blocking portion 1012 wraps the outer side surface 201 of the side wall of the motor bracket 2, and the stamping portion 1011 stamps a predetermined position on the upper end surface 205 of the side wall of the motor bracket 2 to tear the material at that position. Under the obstruction of the blocking portion 1012, the torn material can only be squeezed toward the inner side surface 202 of the side wall of the motor bracket 2 to form a riveting point 204. Figure 4 The number of the middle rivet points 204 is only for illustration, and a predetermined number of punching points 101 can be set on the riveting head according to actual needs to punch out a predetermined number of rivet points 204.

[0024] Preferably, the present application forms an arcuate transition surface 1013 at the connection between the stamping portion 1011 and the blocking portion 1012 , so that the end of the stamped rivet point 204 close to the outer side surface 201 of the side wall of the motor bracket 2 is a curved surface structure.

[0025] Preferably, the present application provides eight punching points 101, and when the riveting head punches downward, eight rivet points 204 can be formed simultaneously to stably rivet the spring piece.

[0026] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A riveting head for a motor bracket assembly, characterized in that: include: A rivet head body (1) and a plurality of punching points (101) arranged at circumferential intervals at the end of the rivet head body (1), wherein each of the punching points (101) comprises a punching portion (1011) extending transversely and having a rectangular structure for punching a predetermined position of an upper end surface (205) of a side wall of a motor support (2) to tear the material at the position, and a blocking portion (1012) arranged at one end of the punching portion (1011) and extending downwardly and bent, capable of wrapping around the outer side surface (201) of the side wall of the motor support (2) to squeeze the torn material toward the inner side surface (202) of the side wall of the motor support (2) to form a rivet point (204).

2. The motor bracket assembly riveting head according to claim 1, characterized in that: An arc-shaped transition surface (1013) is formed at the connection between the stamping portion (1011) and the blocking portion (1012).

3. The motor bracket assembly riveting head according to claim 1 or 2, characterized in that: There are eight punching points (101).

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